The Wiseman Threading Tools Hand Tap — Second Lead Tap with +0.005 tolerance is a precision instrument designed to craft clean, reliable internal threads by hand. Built for M12x1.75 bores, this hand tap delivers tight, accurate thread forms where fit and function truly matter.

The second-lead geometry combines efficient cutting with exceptional control, helping you advance smoothly through material while minimizing the risk of cross-threading and chatter. This makes it an excellent choice for field repairs, fabricating new components, or refreshing worn threads in metal housings, brackets, and assemblies.

Durability is at the core of this Wiseman hand tap. Constructed from durable materials, it’s engineered to stand up to repeated use in demanding shop, garage, or production environments, ensuring dependable performance when you need it most.

• Precise +0.005 tolerance for consistently accurate internal threads and tight fits.
• Internal threading specifically for M12x1.75, ideal for a wide range of machinery and equipment repairs.
• Second lead design delivers steadier cutting, better chip evacuation, and smoother entry into the hole.
• Durable construction ensures longevity and reliable performance in demanding environments.
• Best suited for hand-tapping applications where control and finish matter more than speed.

How to get the best results: prepare the bore with the correct pilot size, apply a light cutting lubricant, and rotate the tap in steady, clockwise motions. Back off slightly to break chips and prevent binding, then continue until the thread reaches the desired depth. This approach yields professional-grade threads without the need for heavy machinery, making the Wiseman hand tap a trusted companion for professionals and serious DIYers alike.